fix financial and certificates

app/Http/Requests/Finance/PaymentAllocationRequest.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace App\Http\Requests\Finance;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class PaymentAllocationRequest extends FormRequest
+{
+    public function authorize(): bool { return true; }
+    public function rules(): array
+    {
+        return [
+            'installments' => ['nullable','array'],
+            'installments.*.installment_id' => ['required_with:installments','integer'],
+            'installments.*.amount' => ['required_with:installments','numeric','min:0.01'],
+        ];
+    }
+}